On 2016-02-06 03:00 PM, Ingo wrote: > > Does anybody have an idea how to fix this? You might try to compare the output of 'stty -a -F /dev/ttyACM0' on both systems. It might be the newer Linux has a different idea about the terminal type of /dev/ttyACM0. > > Thanks! > Ingo > Greetings & success, Fred Jan